American companies in general have a lot of visible and objectionable protections, that is true. But your example, except for maybe Amazon, doesn't really exem

American companies in general have a lot of visible and objectionable protections, that is true. But your example, except for maybe Amazon, doesn't really exemplify this - these companies are successful for various other reasons such as U.S. winning both WWII and the cold war, American market size and world power status, huge government investments into semiconductors in 50's, embargoes on technology exports, lots of wealthy investors willing to invest in American companies. All this and other things helped in various proportions. Maybe Amazon got so big and starved the competition partly because the management treats the workers like serfs and is able to push prices down, but the others I do not really see how they benefit from weak employee rights.